Morphological control of Bi2Te3 nanotubes and their thermoelectric properties
- 주제(키워드) 1D Nanostructure , Bi2Te3 , Chemical Synthesis , Kirkendall Effect , Thermoelectric
- 등재 SCIE, SCOPUS
- 발행기관 American Scientific Publishers
- 발행년도 2015
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000114095
- 본문언어 영어
- Published As http://dx.doi.org/10.1166/jnn.2015.10443
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
Highly uniform Bi2Te3 nanotubes with various morphologies are synthesized via a solution process using Te nanowires as a sacrificial template. The morphology of Bi2Te3 nanotubes can be controlled by varying the solvent system. The reaction between Bi and Te in triethylene glycol (TEG) produces Bi2Te 3 nanotubes with plate-like surface morphology, whereas rough surface morphology of the Bi2Te 3 nanotubes is obtained by the reaction in ethylene glycol (EG). The crystal structures and morphologies of nanotubes are investigated X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM). The effect of solvent on the evolution of morphology of the Bi2Te 3 nanotubes is investigated. The effect of surface morphology on the thermoelectric properties is discussed.
more